Database Reference
In-Depth Information
The activities in
<Sequence>
are executed sequentially as expected by the literal
meaning of
sequence
.
The source code of BPEL Flow is given as follows for reference:
<flow name="Flow1">
<sequence name="Sequence"/>
<sequence name="Sequence1"/>
</flow>
The
<flow>
can contain one or more branches and activities in each branch are ex-
ecuted at the same time.
The interaction with web services can use both synchronous and asynchronous
messaging styles. The orchestration should be able to support both messaging
styles. Using the Flow activity, a synchronous and asynchronous BPEL can be in-
voked concurrently; however, both may not execute at the same time.
The Flow activity shown in the following screenshot has two Invoke activities. One
could be synchronous and the other could be asynchronous:
